Recent Advances in Electrical & Electronic Engineering - Volume 13, Issue 4, 2020

Background: This paper reviews the requirements imposed by Transmission System Operators (TSOs) in their grid codes to address intolerable implications of integrating large Wind Power Plants (WPPs) to the grid. Besides the common objectives, terminologies used by different TSOs were distinct. Therefore, developing a harmonized grid code is imperative. Introduction: On the recommendation of the European Commissio Read More

Background: Wind energy generation has emerged as the fastest growing renewable energy technology in recent years. Among different wind turbine configurations, Permanent Magnet Synchronous Generator (PMSG) based wind turbines are becoming popular due to several advantageous features associated with this. Introduction: In the events of grid fault, active power delivery to the grid is required to be stopped or redu Read More

Objective: A new method based on stochastic modeling of simultaneous optimal reconfiguration of distribution networks and allocation of multiple Distribution STATic COMpensator and renewable energy resources as new developed technologies is suggested in this paper. Background: This problem involves vital uncertain parameters such as: intermittent nature of renewable energy sources, load forecasting and market pric Read More

Background: The conventional method using one-degree-of-freedom (1DOF) controller for Permanent Magnet Synchronous Motor (PMSM) servo system has the trade-off problem between the dynamic performance and the robustness. Methods: In this paper, by using H∞ control theory, a novel robust two-degree-of-freedom (2DOF) controller has been proposed to improve the position control performance of PMSM servo s Read More

Background: Network security is used to secure data transmission over the wireless network. Encryption of information plays a vital role in communication since it protects the sender and receiver from the hackers trying to access the information. Objectives: In recent years, protecting the information data has become a challenging task for the researchers. Hence, there is a need to improve the existing methods of sec Read More

Background & Introduction: With the advent of technology, though the literature highlights many designs of Phase Frequency Detector (PFD), there remains some challenges like area overhead, switching noise near frequency lock point and fast, accurate response to mitigate dead zone and output errors. Methods: In this article, we have unearthed a low power, high speed and dead zone free PFD, which eliminates the switchi Read More

Background: In Multilevel Inverters (MLI) as the number of level increases, there is a proportionate increase in the count of the semiconductor devices that are employed. Methods: This paper deals with an asymmetrical cascaded H-bridge inverter topology with half bridge cells to produce seven level output voltage waveform. Nearest Level Control (NLM) technique is used to produce the switching pulses. The operating prin Read More

Background: Technical feasibility of Ultra High Voltage (UHV) Transmission system is proven through many UHV projects worldwide and research is going on to make it commercially viable. The rapid development of Power Electronics in the field of UHV AC power system has resulted in the economic and efficient transmission of bulk power over long distances. Methods: In order to improve the voltage profile of the transmiss Read More

Background: The security assessment plays a crucial role in the operation of the modern interconnected power system network. Methods: Hence, this paper addresses the application of k-means clustering algorithm equipped with Principal Component Analysis (PCA) and silhouette analysis for the classification of system security states. The proposed technique works on three principal axes; the first stage involves contingency q Read More

Background: The study of induction motor behavior during abnormal conditions due to the presence of faults and the possibility to diagnose these abnormal conditions has been a challenging topic for many electrical machine researchers. Objective: Direct Torque Control (DTC) is applied to the control of an induction motor in healthy and an open circuit fault in the PWM three phase voltage fed inverter. Neural DTC is developed Read More

Background: Aiming at the power fluctuation of wind/ photovoltaic (PV)/ energy storage (ES) hybrid energy conversion system injected into the grid, this paper builds a mathematical model system of distributed microgrid with PV coupling to the DC side of the doubly fed induction generator (DFIG) and proposes hierarchical and phased power coordination strategy. Methods: The hydrogen storage part and the Supercapacitor (SC) ar Read More

Background: With the increase of Electric Vehicle (EV), their disordered charging behaviour will put great pressure on the stable operation of the distribution network. Methods: In order to study the charging and discharging optimization scheme of EVs, firstly the EV charging and discharging load model is founded based on the Vehicle-to-Grid (V2G) technology. Results: According to the electricity price mechanism of Shanxi Pr Read More

Background: The elderly are prone to do some abnormal behaviors, such as tumbling or stepping out of the guardians’ monitoring area. These abnormal behaviors bring enormous hidden dangers to the health of the elderly, which need to be monitored effectively in order to be dealt with in time. Objective: Provide an approach based on Wireless Sensor Network (WSN) and Multi-Layer Perceptron (MLP) to establish the behavi Read More